Home / 12,842.75-19,277.22-6,919.39

Finding the Fourth Proportional to 12,842.75, 19,277.22 and 6,919.39

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Solution

The fourth proportional to 12,842.75, 19,277.22 and 6,919.39 is: 10,386.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,842.75 : 19,277.22 = 6,919.39 : x
  2. Step 2: Convert to fraction form
    12,842.75/19,277.22 = 6,919.39/x
  3. Step 3: Cross multiply
    12,842.75x = 19,277.22 × 6,919.39
  4. Step 4: Simplify right side
    12,842.75x = 133,386,555.10
  5. Step 5: Solve for x
    x = 133,386,555.10/12,842.75
  6. Step 6: Final answer
    x = 10,386.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.